fixed approvers user endpoint

app/assets/javascripts/api.js

@@ -25,7 +25,7 @@ const Api = {
   },
 
   // Return groups list. Filtered by query
-  groups(query, options, callback) {
+  groups(query, options, callback = $.noop) {
     const url = Api.buildUrl(Api.groupsPath);
     return $.ajax({
       url,
@@ -149,6 +149,18 @@ const Api = {
     });
   },
 
+  approverUsers(search, options, callback = $.noop) {
+    const url = Api.buildUrl('/autocomplete/users.json');
+    return $.ajax({
+      url,
+      data: $.extend({
+        search,
+        per_page: 20,
+      }, options),
+      dataType: 'json',
+    }).done(callback);
+  },
+
   ldap_groups(query, provider, callback) {
     const url = Api.buildUrl(this.ldapGroupsPath).replace(':provider', provider);
     return Api.wrapAjaxCall({

app/assets/javascripts/approvers_select.js

@@ -46,7 +46,7 @@ export default class ApproversSelect {
       skip_users: ApproversSelect.getApprovers(this.fieldNames[0], '.js-approver'),
       project_id: $('#project_id').val(),
     };
-    return Api.users(term, options);
+    return Api.approverUsers(term, options);
   }
 
   handleSelectChange(e) {